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Finding the Fourth Proportional to 1,194, 1,791.11 and 414.14

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Solution

The fourth proportional to 1,194, 1,791.11 and 414.14 is: 621.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194 : 1,791.11 = 414.14 : x
  2. Step 2: Convert to fraction form
    1,194/1,791.11 = 414.14/x
  3. Step 3: Cross multiply
    1,194x = 1,791.11 × 414.14
  4. Step 4: Simplify right side
    1,194x = 741,759.27
  5. Step 5: Solve for x
    x = 741,759.27/1,194
  6. Step 6: Final answer
    x = 621.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.